Asymmetry of the anterior ethmoidal artery in relation to the anterior skull base: a population-based study of 500 arteries.

Autor:	Beraldin B; Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil. Electronic address: bernardberaldin1501@gmail.com., Isolan GR; Faculdade Evangélica Mackenzie do Paraná, CEANNE Brasil, Porto Alegre, RS, Brazil., Mostardeiro LR; Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil., Silva VAR; Universidade de Campinas (Unicamp), Faculdade de Ciências Médicas (FCM), Departamento de Otorrinolaringologia, Cirurgia de Cabeça e Pescoço, Campinas, SP, Brazil., Lavinsky J; Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-graduação em Cirurgia, Porto Alegre, RS, Brazil.
Jazyk:	angličtina
Zdroj:	Brazilian journal of otorhinolaryngology [Braz J Otorhinolaryngol] 2024 May-Jun; Vol. 90 (3), pp. 101412. Date of Electronic Publication: 2024 Mar 01.
DOI:	10.1016/j.bjorl.2024.101412
Abstrakt:	Objective: To analyze variability in the distance between the Anterior Ethmoidal Artery (AEA) and the anterior Skull Base (SB), as well as the frequency of lateral asymmetry in a Latin American population using computed tomography. Methods: A total of 250 computed tomography scans of paranasal sinuses in coronal reconstruction (500 AEAs) were analyzed. After determining the image with the best anatomical view of the artery, the distance between its midpoint and the ethmoidal roof was measured, and the images were independently interpreted by 2 physicians. Results: Of the 500 AEAs, 279 (55.8%) adhered to or passed through the SB at a distance of 0mm. A total of 221 AEAs (44.2%) were at some distance from the SB, of which 107 (48.4%) were on the right side, ranging from 1.18 to 6.75mm, and 114 (51.5%) were on the left side, ranging from 1.15 to 6.04mm. The overall mean distance between the AEA and SB was 1.22 (SD=1.57) mm, increasing to 2.77 (SD=1.14) when the arteries adhered to the SB were excluded. Seventy-six individuals (30.4%) had a lateral distance variation > 1mm. Conclusion: Our study includes the largest sample of AEA analyzed with computed tomography scans of paranasal sinuses. There was some distance between the AEA and SB in almost half the patients, and we found a high rate of lateral variability >1mm. Level of Evidence: Level 3. (Copyright © 2024 Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Published by Elsevier España S.L.U. All rights reserved.)
Databáze:	MEDLINE
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